A grey correlation analysis was conducted on 9 indicators of 7 salt tolerant greening tree species planted in Pingluo County during the same period in 2021.The advantages and disadvantages of greening tree species were comprehensively evaluated by ranking them by equal weight correlation degree and weighted correlation degree.The results showed that the order of the equal weight correlation degree and the weighted correlation degree of different greening tree species was basically the same,and Salix matsudana Koidz cv.9901,Salix matsudana var.matsudana f.umbraculifera Rehd.,and Fraxinus chinensis Roxb,ranked in the top three.The comprehensive evaluation was high,and it was suitable for planting in this region.The ranking of the correlation degree of Salix babylonica was in the end,with a low comprehensive evaluation and relatively poor suitability.
关键词
灰色关联度/耐盐绿化树种/指标/综合评价/平罗县
Key words
grey correlation degree/salt tolerant greening tree species/indicators/comprehensive evaluation/Pingluo County
维普
万方数据